Troubleshooting - Sears Craftsman 944.621554 Owner's Manual

PROBLEM
Will not start 1. Out of fuel.
2. Engine not "CHOKED" properly.
3. Engine fl ooded.
4. Dirty air cleaner.
5. Water in fuel.
6. Clogged fuel tank.
7. Loose spark plug wire.
8. Bad spark plug or improper gap.
9. Carburetor out of adjustment.
Hard to start 1. Throttle control not set properly.
2. Dirty air cleaner.
3. Bad spark plug or improper gap.
4. Stale or dirty fuel.
5. Loose spark plug wire.
6. Carburetor out of adjustment.
Loss of power 1. Engine is overloaded.
2. Dirty air cleaner.
3. Low oil level/dirty oil.
4. Faulty spark plug.
5. Oil in fuel.
6. Stale or dirty fuel.
7. Water in fuel.
8. Clogged fuel tank.
9. Spark plug wire loose.
10. Dirty engine air screen.
11. Dirty/clogged muffl er.
12. Carburetor out of adjustment.
13. Poor compression.
Engine overheats 1. Low oil level/dirty oil.
2. Dirty engine air screen.
3. Dirty engine.
4. Partially plugged muffl er.
5. Improper carburetor adjustment.
Excessive bounce/ 1. Ground too dry and hard.
diffi cult handling
2. Wheels and depth stake incorrectly adjusted.
Soil balls up or clumps 1. Ground too wet.
Engine runs but tiller 1. Tine control is not engaged.
won't move 2. V-belt not correctly adjusted.
3. V-belt is off pulley(s).
Engine runs but labors 1. Tilling too deep.
when tilling 2. Throttle control not properly adjusted.
3. Carburetor out of adjustment.
TROUBLESHOOTING POINTS
CAUSE CORRECTION
1. Fill fuel tank.
2. See "TO START ENGINE" in the Operation section.
3. Wait several minutes before attempting to start.
4. Clean or replace air cleaner cartridge.
5. Drain fuel tank and carburetor, and refi ll tank with fresh
gasoline.
6. Remove fuel tank and clean.
7. Make sure spark plug wire is seated properly on plug.
8. Replace spark plug or adjust gap.
9. Make necessary adjustments.
1. Place throttle control in "FAST" position.
2. Clean or replace air cleaner cartridge.
3. Replace spark plug or adjust gap.
4. Drain fuel tank and refi ll with fresh gasoline.
5. Make sure spark plug wire is seated properly on plug.
6. Make necessary adjustments.
1. Set depth stake and wheels for shallower tilling.
2. Clean or replace air cleaner cartridge.
3. Check oil level/change oil.
4. Clean and regap or change spark plug.
5. Drain and clean fuel tank and refi ll, and clean carburetor.
6. Drain fuel tank and refi ll with fresh gasoline.
7. Drain fuel tank and carburetor, and refi ll tank with fresh
gasoline.
8. Remove fuel tank and clean.
9. Connect and tighten spark plug wire.
10. Clean engine air screen.
11. Clean/replace muffl er.
12. Make necessary adjustments.
13. Contact an authorized service center/department.
1. Check oil level/change oil.
2. Clean engine air screen.
3. Clean cylinder fi ns, air screen, muffl er area.
4. Remove and clean muffl er.
5. Adjust carburetor to richer position.
1. Moisten ground or wait for more favorable soil
conditions.
2. Adjust wheels and depth stake.
1. Wait for more favorable soil conditions.
1. Engage tine control.
2. Inspect/adjust V-belt.
3. Inspect V-belt.
1. Set depth stake for shallower tilling.
2. Check throttle control setting.
3. Make necessary adjustments.
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